EP 0325324 A3 19910724 - APPARATUS AND PROCESS FOR RECLAIMING GRAVEL, SOIL PARTICLES AND WOOD PIECES FROM A MIXTURE OF THE SAME
Title (en)
APPARATUS AND PROCESS FOR RECLAIMING GRAVEL, SOIL PARTICLES AND WOOD PIECES FROM A MIXTURE OF THE SAME
Publication
Application
Priority
US 14523088 A 19880119
Abstract (en)
[origin: EP0325324A2] A mixture of rock, soil particles and wood pieces (10 min ) is introduced into a water tank (34) generally between a manifold (64) for a plurality of jet nozzles (62) and a vane or baffle (66) towards which the nozzles (62) discharge streams of water. Buoyant and nonbuoyant wood pieces (14) are moved by currents produced by jet streams issuing from the nozzles (62) towards and over the baffle (66) onto a wood piece conveyor (150) which removes the wood pieces (14) out from the water tank (34). Rocks (16) from the mixture drop down onto a rock receiving portion (82) of a rock conveyor (82, 84) which collects the rock (14) and removes it out from the water tank (34). Soil particles (18) from the mixture are washed off from the rock (16) and wood pieces (14) and settled to the bottom of the tank (34). A drag chain conveyor (160) moves accumulated soil particle mud out from the bottom of the chamber (34). The water in the chamber (34) overflows first into a first settling chamber (52) and then into a second settling chamber (54). A pump (174) pumps the water from the tank (54) back to the manifold (64).
IPC 1-7
IPC 8 full level
B03B 5/28 (2006.01); B03B 5/40 (2006.01); B03B 5/62 (2006.01); B03B 7/00 (2006.01); B03B 9/06 (2006.01); B03B 11/00 (2006.01)
CPC (source: EP US)
B03B 5/40 (2013.01 - EP US); B03B 5/62 (2013.01 - EP US); B03B 7/00 (2013.01 - EP US); B03B 9/06 (2013.01 - EP US); B03B 11/00 (2013.01 - EP US); B03B 2005/405 (2013.01 - EP US); Y02W 30/52 (2015.05 - EP US)
Citation (search report)
- [A] US 4375264 A 19830301 - PORTER HERSCHEL F
- [A] FR 858742 A 19401202
- [A] SE 439121 B 19850603 - GOETEBORGS STADS VERKSTAEDER [SE]
- [A] EP 0228724 A2 19870715 - DANECO DANIELI ECOLOGIA SPA [IT]
- [A] DE 3717839 A1 19871203 - ANDRITZ AG MASCHF [AT]
- [A] EP 0093220 A1 19831109 - BELOIT CORP [US]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0325324 A2 19890726; EP 0325324 A3 19910724; AU 2852589 A 19890720; CA 1314843 C 19930323; JP H01224059 A 19890907; US 5110454 A 19920505
DOCDB simple family (application)
EP 89200079 A 19890113; AU 2852589 A 19890116; CA 588478 A 19890118; JP 1098089 A 19890119; US 14523088 A 19880119